C02 - The Human Body Flashcards
Define Homeostasis?
When the body uses feedback and control mechanisms to maintain a stable environment.
The Body Temperature is regulated to?
37°C.
Define Cardiovascular System?
Uses the blood to transport oxygen and nutrients around the body and back to the heart.
Define Respiratory System?
Draws air to the lung from where oxygen is absorbed into the blood stream.
Define Digestive System?
Uses enzymes to break down food into its component parts.
Define Renal System?
Comprises of the kidneys and the urinary tract.
Define Musculoskeletal System?
Comprises the bones, muscles, joints and their tissues.
Define Sensory System?
Comprises of the eyes and ears.
Define Nervous System?
All body systems which need to be controlled and regulated.
Define Endocrine System?
Uses chemical messengers that travel to the cells via the blood stream.
Define Immune System?
Provides defensive systems to protect the body.
Define Integumentary System?
Comprises of the skin, hair and nails.
What are the four elements which make up the human body?
- Carbon.
- Oxygen.
- Hydrogen.
- Nitrogen.
The average composition of lean human tissues is (4)?
- 65% Water.
- 17% Fats.
- 14% Proteins.
- 4% Acid, Sugars and Minerals.